Disguised as a panthan, a Barsoomian soldier of fortune, John Carter ventures forth to break the power of the Assassins guild of Zodanga. Spying on their councils, the mighty Warlord discovers a plot designed to kidnap his beloved Princess, Dejah Thoris. Rushing to prevent this, he discovers to his horror that he is already too late; She was already bound and on her way to Thuria, Barsoom's nearer moon! Unwilling to let even the gulf of space deter him, he pursues her through the void to a world quite different from the one with which he was familiar. Foraging through verdant forests, pursued by ferocious cat-men, Carter must reach his love or die trying......